EP 4394070 A1 20240703 - STEEL PLATE AND PRESS-MOLDED ARTICLE
Title (en)
STEEL PLATE AND PRESS-MOLDED ARTICLE
Title (de)
STAHLPLATTE UND PRESSFORMARTIKEL
Title (fr)
PLAQUE D'ACIER, ET ARTICLE MOULÉ ET PRESSÉ
Publication
Application
Priority
JP 2021031487 W 20210827
Abstract (en)
The steel sheet contains, as a chemical composition, by mass%, C: 0.040% to 0.100%, Mn: 1.00% to 2.00%, Si: 0.005% to 1.500%, P: 0.100% or less, S: 0.0200% or less, Al: 0.005% to 0.700%, N: 0.0150% or less, O: 0.0100% or less, and a remainder: Fe and impurities, in which an arithmetic mean waviness Wa is in a range of 0.10 to 0.30 µm.
IPC 8 full level
C22C 38/00 (2006.01); C21D 9/46 (2006.01); C22C 38/58 (2006.01); C22C 38/60 (2006.01)
CPC (source: EP KR)
C21D 3/04 (2013.01 - KR); C21D 8/0257 (2013.01 - KR); C21D 9/46 (2013.01 - EP KR); C22C 38/001 (2013.01 - KR); C22C 38/002 (2013.01 - EP); C22C 38/005 (2013.01 - EP); C22C 38/008 (2013.01 - EP KR); C22C 38/02 (2013.01 - EP); C22C 38/04 (2013.01 - EP); C22C 38/06 (2013.01 - EP KR); C22C 38/12 (2013.01 - EP); C22C 38/14 (2013.01 - EP); C22C 38/22 (2013.01 - EP); C22C 38/24 (2013.01 - EP); C22C 38/26 (2013.01 - EP); C22C 38/28 (2013.01 - EP); C22C 38/32 (2013.01 - EP); C22C 38/38 (2013.01 - EP); C22C 38/42 (2013.01 - KR); C22C 38/44 (2013.01 - EP KR); C22C 38/46 (2013.01 - KR); C22C 38/48 (2013.01 - KR); C22C 38/50 (2013.01 - EP KR); C22C 38/54 (2013.01 - EP KR); C22C 38/58 (2013.01 - EP KR); C23C 2/06 (2013.01 - EP KR); C23C 2/28 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4394070 A1 20240703; CN 117897512 A 20240416; JP WO2023026465 A1 20230302; KR 20240036620 A 20240320; WO 2023026465 A1 20230302
DOCDB simple family (application)
EP 21955075 A 20210827; CN 202180101569 A 20210827; JP 2021031487 W 20210827; JP 2023543605 A 20210827; KR 20247005240 A 20210827